DE602007006960D1 - SIGNAL PROCESSING FOR AN ACOUSTIC TRANSFORMER ARRAY - Google Patents

SIGNAL PROCESSING FOR AN ACOUSTIC TRANSFORMER ARRAY

Info

Publication number
DE602007006960D1
DE602007006960D1 DE602007006960T DE602007006960T DE602007006960D1 DE 602007006960 D1 DE602007006960 D1 DE 602007006960D1 DE 602007006960 T DE602007006960 T DE 602007006960T DE 602007006960 T DE602007006960 T DE 602007006960T DE 602007006960 D1 DE602007006960 D1 DE 602007006960D1
Authority
DE
Germany
Prior art keywords
signal processing
acoustic transformer
transformer array
input signals
loudspeakers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602007006960T
Other languages
German (de)
Inventor
William Berardi
Eric J Freeman
Michael W Stark
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bose Corp
Original Assignee
Bose Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bose Corp filed Critical Bose Corp
Publication of DE602007006960D1 publication Critical patent/DE602007006960D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2203/00—Details of circuits for transducers, loudspeakers or microphones covered by H04R3/00 but not provided for in any of its subgroups
    • H04R2203/12—Beamforming aspects for stereophonic sound reproduction with loudspeaker arrays

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

A set of filters is configured to distribute input signals representing a single perceptual axis to first and second physically separate arrays of loudspeakers comprising at least first and second transducers, such that the arrays of loudspeakers will create an array pattern corresponding to the input signals when the input signals are between a first frequency and a second frequency.
DE602007006960T 2006-08-04 2007-07-27 SIGNAL PROCESSING FOR AN ACOUSTIC TRANSFORMER ARRAY Active DE602007006960D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/462,496 US7995778B2 (en) 2006-08-04 2006-08-04 Acoustic transducer array signal processing
PCT/US2007/074618 WO2008019231A2 (en) 2006-08-04 2007-07-27 Acoustic transducer array signal processing

Publications (1)

Publication Number Publication Date
DE602007006960D1 true DE602007006960D1 (en) 2010-07-15

Family

ID=38921819

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007006960T Active DE602007006960D1 (en) 2006-08-04 2007-07-27 SIGNAL PROCESSING FOR AN ACOUSTIC TRANSFORMER ARRAY

Country Status (9)

Country Link
US (1) US7995778B2 (en)
EP (1) EP2047456B1 (en)
JP (1) JP5180207B2 (en)
CN (1) CN101351836B (en)
AT (1) ATE470216T1 (en)
AU (1) AU2007281813A1 (en)
DE (1) DE602007006960D1 (en)
HK (1) HK1125733A1 (en)
WO (1) WO2008019231A2 (en)

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US8280072B2 (en) 2003-03-27 2012-10-02 Aliphcom, Inc. Microphone array with rear venting
US9066186B2 (en) 2003-01-30 2015-06-23 Aliphcom Light-based detection for acoustic applications
US9099094B2 (en) 2003-03-27 2015-08-04 Aliphcom Microphone array with rear venting
US8483413B2 (en) * 2007-05-04 2013-07-09 Bose Corporation System and method for directionally radiating sound
US9100748B2 (en) 2007-05-04 2015-08-04 Bose Corporation System and method for directionally radiating sound
US20080273724A1 (en) * 2007-05-04 2008-11-06 Klaus Hartung System and method for directionally radiating sound
KR101385839B1 (en) * 2007-09-21 2014-04-16 삼성전자주식회사 Speaker apparatus of mobile communication terminal for outputting high quality sound
US7957412B2 (en) * 2008-03-19 2011-06-07 Cray Inc. Lonely pulse compensation
US9264813B2 (en) * 2010-03-04 2016-02-16 Logitech, Europe S.A. Virtual surround for loudspeakers with increased constant directivity
US8934655B2 (en) * 2011-04-14 2015-01-13 Bose Corporation Orientation-responsive use of acoustic reflection
US8934647B2 (en) * 2011-04-14 2015-01-13 Bose Corporation Orientation-responsive acoustic driver selection
US9253561B2 (en) * 2011-04-14 2016-02-02 Bose Corporation Orientation-responsive acoustic array control
EP2816819B1 (en) * 2011-04-14 2019-08-07 Bose Corporation Orientation-responsive acoustic driver operation
EP3081013A1 (en) * 2013-12-09 2016-10-19 Huawei Technologies Co., Ltd. Apparatus and method for enhancing a spatial perception of an audio signal
TWI657701B (en) * 2016-06-17 2019-04-21 中國商信泰光學（深圳）有限公司 Headphone device
GB2589091B (en) * 2019-11-15 2022-01-12 Meridian Audio Ltd Spectral compensation filters for close proximity sound sources
US11323813B2 (en) * 2020-09-30 2022-05-03 Bose Corporation Soundbar
JP7008380B1 (en) 2021-09-01 2022-01-25 株式会社フジケンプラス Fixture
US20230370805A1 (en) * 2022-05-11 2023-11-16 Harman International Industries, Incorporated Techniques for outputting audio through a plurality of drivers within a same audio output device

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US4569074A (en) * 1984-06-01 1986-02-04 Polk Audio, Inc. Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
US4819269A (en) * 1987-07-21 1989-04-04 Hughes Aircraft Company Extended imaging split mode loudspeaker system
US4893342A (en) * 1987-10-15 1990-01-09 Cooper Duane H Head diffraction compensated stereo system
JPH01144719A (en) * 1987-11-30 1989-06-07 Toshiba Corp Retriggable multi-vibrator
US4847904A (en) * 1988-04-01 1989-07-11 Boston Acoustics, Inc. Ambient imaging loudspeaker system
US4888804A (en) * 1988-05-12 1989-12-19 Gefvert Herbert I Sound reproduction system
US5027403A (en) * 1988-11-21 1991-06-25 Bose Corporation Video sound
JP2528178B2 (en) * 1989-03-14 1996-08-28 パイオニア株式会社 Directional speaker device
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US6263083B1 (en) * 1997-04-11 2001-07-17 The Regents Of The University Of Michigan Directional tone color loudspeaker
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Also Published As

Publication number Publication date
WO2008019231A2 (en) 2008-02-14
HK1125733A1 (en) 2009-08-14
JP2009545928A (en) 2009-12-24
US20080031474A1 (en) 2008-02-07
ATE470216T1 (en) 2010-06-15
WO2008019231A3 (en) 2008-03-20
EP2047456B1 (en) 2010-06-02
AU2007281813A1 (en) 2008-02-14
CN101351836B (en) 2012-09-05
JP5180207B2 (en) 2013-04-10
US7995778B2 (en) 2011-08-09
CN101351836A (en) 2009-01-21
EP2047456A2 (en) 2009-04-15

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